/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.googlecode.gmaps4jsf.component.map;

import java.io.IOException;

import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;

import com.googlecode.gmaps4jsf.component.icon.Icon;
import com.googlecode.gmaps4jsf.util.ComponentConstants;

/**
 * @author Hazem Saleh
 * @date September 27, 2008
 * The IconEncoder is used for encoding the marker icons.
 */
public class IconEncoder {

    public static void encodeIconFunctionScript(FacesContext facesContext,
                                                Icon iconComponent, 
                                                ResponseWriter writer) 
                                                throws IOException {

        writer.write(ComponentConstants.JS_FUNCTION
                    + ComponentConstants.JS_CREATE_ICON_FUNCTION_PREFIX
                    + iconComponent.getId() + "() {");

        writer.write("var iconObject = new "
                    + ComponentConstants.JS_GIcon_OBJECT + "("
                    + ComponentConstants.JS_CONST_G_DEFAULT_ICON_OBJECT + ");     ");

        if (iconComponent.getShadowImageURL() != null) {
            writer.write("iconObject.shadow = " + "'"
                        + iconComponent.getShadowImageURL() + "';     ");
        }

        writer.write("iconObject.iconSize = " + "new "
                    + ComponentConstants.JS_GSize_OBJECT + "("
                    + iconComponent.getWidth() + ", " + iconComponent.getHeight()
                    + ");     ");

        writer.write("iconObject.shadowSize = new "
                    + ComponentConstants.JS_GSize_OBJECT + "("
                    + iconComponent.getShadowWidth() + ", "
                    + iconComponent.getShadowHeight() + ");     ");

        writer.write("iconObject.iconAnchor = new "
                    + ComponentConstants.JS_GPoint_OBJECT + "("
                    + iconComponent.getXcoordAnchor() + ", "
                    + iconComponent.getYcoordAnchor() + ");     ");

        writer.write("iconObject.infoWindowAnchor = new "
                    + ComponentConstants.JS_GPoint_OBJECT + "("
                    + iconComponent.getXcoordInfoWindowAnchor() + ", "
                    + iconComponent.getYcoordInfoWindowAnchor() + ");     ");

        writer.write("iconObject.image = '" 
                    + iconComponent.getImageURL()
                    + "';     ");

        writer.write("return iconObject;     ");
        
        writer.write("}");
    }

    public static String getIconFunctionScriptCall(FacesContext facesContext,
                                                   Icon iconComponent, 
                                                   ResponseWriter writer) 
                                                   throws IOException {

        return ComponentConstants.JS_CREATE_ICON_FUNCTION_PREFIX + iconComponent.getId() + "()";
    }
}
